Roller-bearing



L F. O'CONNOR.

ROLLER BEARING.

APPLICATION FILI-:n APR. s, 19m.

1 ,$57,800.Y Patented Nov. 2, 1920. mgl I R\\ w; y hin Z' I" 1 C 22 f f, 97 Jr"- l a z/ 7,2 K [i IIIH HHIIIIH Hl INH HHH HH I] v. lf-II I'I ZZ gg l: s III I' I i I I I @ILL IHM IIIII'I/I W" fl; l2 2/0 f2 ZZ /Z l' C F' .Ji

y Z0 d INVEIyToR. WITNESSBS.- /6 Jaim/Fmr muren stares lgA'llEhlT FlFlCE.

JHN F. OCONNGE, 0F CHICAGO, LLINOIS, ASSNQR TO 'WILLIAMl-l MINEBI, OF

CEAZY, NEW

ROLLERfBEARING.

Specification of Letters Patent.

Patented raw. a, ieee.

Application filedV April 3, 1919. Serial No. 287,171.

To all rfi/"wm t may concer-1t .lic it known that L {loi-iN F. OCoNNoR, a citizen oi.: the United States, residing at Uhr cago, in the county ot Cook and State ot illinois, have invented a certain new and useful lmprovement in Roller-Bearings. ot which the following is a full? clear. concise and exact description, reference being had to the accompanying drawings, forming a part ci' this specification.

rl`his invention relates to improvements in roller bearings.

@ne object of the invention is to proif'ide a roller bearing having a plurality oi" anti friction rollers and adapted especially tor.

use as a side bearing tor railway cars.

A more speciiic object oi' the invention is to provide a roller bearing ot the type above indicated7 having improved means for returning the antiriction rollers to their central normal position under the influence of gravity after each actuation, said means being so designed and cooperating` with the base casting that the parts will always be brought to rest when freerom actuating pressure in the proper place.

ln the drawings forming a part oit this specitlcation7 Figure l is a vertical sectional View taken transversely through the ends oi a body bolster and a truck bolster et a car showing my improvements in connection therewith. Fig. 2 is a top plan view olf the bearing` shownin Fig. fl. rind Fig. 5 is a if'ei'ticril Sectional View taken substantially on the line 3-3 of' 2.

'in said drawing, l0 denotes the underside oi: a body bolster and 1l the upper side oli an opposed truclrv bolster. The improved bearing is shown as applied to the truck bolsterend comprises, broadly, a base casting or casing A, a pair ot' anti-friction rollers` EMB, and a pair oi weights C-G The casting or casing A is ot substantially rectangular torination and has parallel side walls lf2-12, end walls l3-l8, lower horizontal wall le and perforated corner lugs l5 bv which it is riveted or 'bolted to the bhlster. Ilhe lower wall oi the casing or retaining member is adapted to take the load 'from the rollers and is preferably provided with a steel insert indicated at 115 to provide better wearing qualities. The bottoni wall is suitably recessed as at 16 to accommodate the insert 115 so that the upper Jface of the latter lies flush with the top surface ot' the remaining portion of the bottom wall. To hold the steel insert in position l provide a pair of overhanging lugs lil-17 at one end under which the insert ll is inserted and at the other end o the plate a coto 1S is extended through the wall 13 in such manner as to overlap the insert 115 and hold it against accidental removal. The casting may be cut away in the end walls as indicated llli9 in order to permit dirt and other toreign matter to be cleared therefrom.

'llhe two rollers B are each of cylindrical torni and of similar diameter and each is provided at its ends with pairs ot laterally extended pins Ell- 20. Said pins 2O when both rollers are in normal position will stand in the same horizontal plane as will be evident from an inspection ol Figs. l and 2.

The weights C are counterparts and a description o'lfone will snilice. llach weight C is preferablyy in the torni of a plate having tour downwardly opening curved slots Ql-QL The slots 2l are arranged in pairs of opposite curvature and so disposed-that the pins 2O ot the rollers will all seat simultaneously against the plate it the top .ot the openings 2l, clearly appears from an inspection ot Fig. l, The weights C all bear on the pins 2O and hold the pins 520 in their lowermost position with the rolers B unitormly spaced. As the rollers are rolled. to either side oi normal itis evident that one pin at each end ot each roller l? will `se so that the plates or weights C will be lined and always maintained in ahorizontal posi tion. Such a condition of the parts is illus trated by the dotted lines ot' Fig. l where the rollers are shown in their extreme position to the lett. the lett-hand roller .ll haring come into Contact with the lett-hand end wall 13. t now the actuatingl pressure is removed trom the rollers` B7 it is evident that the weights C all bear on the elevated pins 2() so as to roll the rollers E hach to the original position.

ln order to insure the retnrfi the rollers to their central position a` 1 tion of the bearing and also to y sibility ot the rollers being shifted length wise of the base castingdue to or vibration, l provide the following means. @n each side of the base casting and at each end thereof, in alinement with the corresponding weights C, l provice an inclined shoulder as indicated at 22-22 cent ends of the Weights C are correspondingly beveled or inclined as indicated at 23 .and the length of the Weights C is such that there is a slight clearancenormally between the beveled ends 23 and the inclined shoulders 22 of the base casting. The bevel of the ends 23 and incline of the shoulders 22 is made such that there will be no interference with the elevation of the Weights C as the rollers move to either side of normal, assuming` that the parts start from the position shown in the drawings. Any tendency of the rollers and Weights C' to be shifted longitudinally will be limited by engagement of the Weights with the inclined shoulders 22 and similarly, after the Weights C have been elevated as the Weights fall during the rotation of the rollers B the Weights Will be positively centered by the inclined shoulders 22.

Although l have herein shown and described what l nov,7 consider the preferred manner of carrying out the invention, the same Vis merely illustrative and l contemplate all changes and modifications that come Within the scope of the claims appended hereto.

I claim: Y

l. ln. an anti-friction bearing, the combination Ywith a hollonv retaining member, of a plurality of anti-friction rollers disposed Within said' member, a ive-ight Within said member,` and duplicate sets of projections on said rollers engaging said Weight, one set being adapt-ed to elevate the Weight when the rollers are moved in one direction and the other set to'elevate the said Weight when the'rollers are moved in the opposite direction.

2. In anY anti-friction bearing, the combination with a hollow retaining member, of a plurality of anti-friction rollers disposed Within said member,each of said rollers having a pair of spaced projections, and a slotted gravity actuated plate mounted on saidrprojections and adapted to be elevated when the rollers are moved to either side of normal, the plate being adapted to return the rollers to normal position upon removal of the actuating pressure.

3. ln an anti-friction bearing, the combination With a hollow retaining member having side and end Walls, of a plurality of The adja- V anti-friction rollers mounted Within said member, each of said rollers having a pair of projections extending from each end thereof, a gravity actuated plate at each end of the rollers and slotted to lit over said projections, and means on the base casting cooperable with said plates to position the latter with respect to the base casting and prevent abnormal shifting of the rollers With respect to the retaining member.

4. ln an anti-friction bearing of the character described, the combination with a hollon7 substantially rectangular retaining member having a horizontally ext-ending bearing surface therein; of a plurality of anti-friction rollers Within said retaining member and adapted to roll back and forth on said bearing surface; a gravity controlled plate independent of the retaining member and disposed therein; and cooperating means on said plate and each of said rollers so arranged that, upon rolling movement of the rollers to either side of normal position, said plate Will be elevated and automatically return said rollers to normal position upon removal of the actuating pressure, said plate and retaining` member having cooperating means for centering said plate with respect tothe retaining member. f

5. ln an anti-friction bearing of the character described, the combination With a hollovv substantially rectangular retaining member adapted to be secured to a truck bolster and provided on its interior with a flat bearing surface and inclined ledges each end thereof and on opposite sides; of a plurality of anti-friction rollers disposed Within said retaining member and adapted to roll back and'forth on said bearing surface; gravity actuated plates disposed at the opposite ends of said rollers and in alinement with said inclined ledges; and cooperating means on said rollers and plates arranged to elevate the latter as the rollers move to either side of normal'position, said rollers extending above the top of the retaining member and adapted to coperate with an opposed bearing surface.

In Witness that I vclaim the foregoing l have hereunto subscribed my name this 22nd day of Feb., 1919.

JOHN F. OCONNOR.

Witness:

CARRIE GAILING. 

